Jose María Valderas

Jose María Valderas
National University of Singapore | NUS

MD PhD MPH

About

362
Publications
54,445
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
16,912
Citations

Publications

Publications (362)
Article
Full-text available
Background The International Survey of People living with Chronic Conditions (OECD-PaRIS survey), aims to systematically gather patient-reported experiences (PREMs) and - outcomes (PROMs) and potential predictors for these outcomes for persons with chronic conditions as well as information from professionals about health care provided. In such pati...
Article
Full-text available
Background Current acute healthcare service metrics are not meaningful for older people living with frailty. Healthcare knowledge, situational security, and physical and psychosocial function are important outcomes typically not collected. The use of patient-reported outcome measures (PROMs) could support these assessments. Existing instruments are...
Article
Background The Organisation for Economic Co-operation and Development (OECD) Patient-Reported Indicator Surveys (PaRIS) initiative aims to support countries in improving care for people living with chronic conditions by collecting information on how people experience the quality and performance of primary and (generalist) ambulatory care services....
Preprint
Background Little is known about the practices and resources employed by general practitioners (GPs) in Singapore to manage late-life depression. As the country is stepping up its efforts to promote collaborative care across community mental health and geriatric care, understanding GPs’ current practices when managing late-life depression appears t...
Article
Full-text available
Background Detection and management of late-life depression largely relies on primary care. Yet in Singapore, older adults are unlikely to seek help for their mental health from their primary care providers. This qualitative descriptive study explores how late-life depression manifests to general practitioners (GPs) in the Singaporean primary care...
Article
Full-text available
Background: Contradictory findings link trait conscientiousness in mid- and late life to increased healthspan and lifespan, as well as to death by suicide. It remains unclear whether conscientiousness is associated with higher odds of attempting suicide or with more severe suicidal behavior among attempters, and whether its relationship to suicide...
Article
Full-text available
Data on primary care antibiotic prescription practices for children in Singapore, which are essential for health care policy, are lacking. We aimed to address this gap and to benchmark prescription practices against international standards. A retrospective cohort database study on antibiotic prescriptions for children (aged < 18 years) who visited...
Article
Full-text available
Purpose Patient-report outcome measures (PROMs) have gained widespread support as a mechanism to improve healthcare quality. We aimed to map out key enablers and barriers influencing PROMs implementation strategies in routine clinical practice. Methods An umbrella review was conducted to identify reviews exploring enablers and barriers related to...
Article
Full-text available
Healthcare professionals have first-hand experience with patients in clinical practice and the dynamics in the healthcare system, which can be of great value in the design, implementation, data analysis and dissemination of research study results. Primary care professionals are particularly important as they provide first contact, accessible, coord...
Article
Full-text available
Objective Patients with type 2 diabetes require patient-centred care as guided by the Chronic Care Model (CCM). Many diabetes patients in Singapore are managed by the Primary Care Networks (PCNs) which organised healthcare professionals (HCPs) comprising general practitioners, nurses and care coordinators into teams to provide diabetes care. Little...
Preprint
Full-text available
Background Multimorbidity, the presence of two or more conditions in one person, is increasingly prevalent. Yet shared biological mechanisms of specific pairs of conditions often remain poorly understood. We address this gap by integrating large-scale primary care and genetic data to elucidate potential causes of multimorbidity. Methods We defined...
Preprint
Full-text available
Background Detection and management of late-life depression largely relies on primary care. Yet in Singapore, older adults are unlikely to seek help for their mental health from their primary care providers. This qualitative study explores how late-life depression manifests to general practitioners (GPs) in the Singaporean primary care setting.Meth...
Article
Background Postnatal mental health problems (PMHPs) are prevalent and negatively affect mothers, children, and society. International and local guidelines recommend that Singapore primary care physicians (PCP) screen, assess, and manage mothers with PMHPs. However, little is known about their experiences and views. Methods We conducted semi-struct...
Preprint
Background Engaging patients and their families in patient safety has been proposed and promoted as key strategy in recent decades. However, little is known about the translation of such an approach in Primary Care. We aimed to estimate the effectiveness of interventions focussing on patient and family engagement for patient safety in primary care...
Article
Full-text available
Background Type 2 diabetes (T2D) remains an important chronic condition worldwide requiring integrated patient-centred care as advocated by the Chronic Care Model (CCM). The Primary Care Networks (PCNs) in Singapore organise general practitioners (GPs) with nurses and care coordinators to deliver team-based care for patients with chronic conditions...
Conference Paper
Aims and Objectives Measurement of acute care quality and effectiveness is usually constrained to service metrics such as mortality and waiting times. Meaningful measurement for older people living with frailty would include additional person-centred outcomes of healthcare knowledge, shared decision-making, and situational security. Consideration o...
Article
Full-text available
Monitoring of the mental health status of the population and assessment of its determinants are 2 of the most relevant pillars of public mental health, and data from population health surveys could be instrumental to support them. Although these surveys could be an important and suitable resource for these purposes, due to different limitations and...
Article
Full-text available
Background Although outcome goals for acute healthcare among older people living with frailty often include Health-Related Quality of Life (HRQoL) and other patient-reported outcome measures (PROMs), current quality metrics usually focus on waiting times and survival. Lay and patient review have identified the EuroQol EQ-5D as a candidate measure f...
Preprint
Full-text available
Background The International Survey of People living with Chronic Conditions (OECD-PaRIS survey), aims to systematically gather patient-reported experiences (PREMs) and - outcomes (PROMs) and potential predictors for these outcomes for persons with chronic conditions as well as information from professionals about health care provided. In such pati...
Article
Full-text available
Background: The 8-item version of the Patient Health Questionnaire (PHQ-8) is one of the self-reported questionnaires most frequently used worldwide for the screening and severity assessment of depression. However, in some European countries its reliability is unknown, and it is unclear whether its psychometric properties vary between European cou...
Article
Full-text available
Background Research shows that feeding back patient-reported outcome information to clinicians and/or patients could be associated with improved care processes and patient outcomes. Quantitative syntheses of intervention effects on oncology patient outcomes are lacking. Objective To determine the effects of patient-reported outcome measure (PROM)...
Article
Full-text available
Background and objectives: Significant health inequities exist in screening uptake for certain types of cancer. The review question was to identify and describe interactive, tailored digital, computer, and web-based interventions to reduce health inequity in cancer screening and review the effectiveness of such interventions in increasing screenin...
Preprint
UNSTRUCTURED Monitoring of the mental health status of the population and assessment of its determinants are 2 of the most relevant pillars of public mental health, and data from population health surveys could be instrumental to support them. Although these surveys could be an important and suitable resource for these purposes, due to different li...
Article
Older people living with frailty emphasize autonomy and function as acute healthcare outcome goals. Existing Patient-Reported Outcome Measures (PROMs) measure function but do not comprehensively address autonomy. This initial development of a novel autonomy outcome measure used co-creation and cognitive interviews, working toward a PROM for Older P...
Article
Full-text available
Background Health inequities lead to low rates of cancer screening in certain populations, such as low-income and ethnic minority groups. Different interventions to address this have been developed with mixed results. However, interventions are not always developed in collaboration with the people they target. The aim of our article is to present t...
Article
Full-text available
Air pollution and multimorbidity are two of the most important challenges for Public Health worldwide. Although there is a large body of evidence linking air pollution with the development of different single chronic conditions, the evidence about the relationship between air pollution and multimorbidity (the co-occurrence of multiple long-term con...
Article
Full-text available
Introduction The current service metrics used to evaluate quality in emergency care do not account for specific healthcare outcome goals for older people living with frailty. These have previously been classified under themes of ‘Autonomy’ and ‘Functioning’. There is no person-reported outcome measure (PROM) for older people with frailty and emerge...
Article
Objectives: To compare processes of care and clinical outcomes of community-based management of TIAs and minor strokes (TIAMS) between rural and metropolitan Australia. Design: Inception cohort study between 2012 and 2016 with 12-month follow-up after index event (sub-study of INSIST). Setting: Hunter and Manning valley regions of New South Wa...
Article
Full-text available
Introduction The prevalence of depression based on the Patient Health Questionnaire-8 (PHQ-8) may vary depending on the scoring method. Objectives 1) To describe the prevalence of depression in Europe using two PHQ-8 scoring methods. 2) To identify the countries with the highest prevalence according to each method. Methods Data from 27 countries...
Conference Paper
Background There is no cure for dementia, so finding elements of care that make a difference to patients remains a priority. Treatment of patients with dementia is often complicated by additional medical conditions and they have double the risk of being prescribed inappropriate medication. Higher continuity of general practitioner care (CGPC), that...
Article
Full-text available
Background The progressive ageing of the population is leading to an increase in multimorbidity and polypharmacy, which in turn may increase the risk of hospitalization and mortality. The enhancement of care with information and communications technology (ICT) can facilitate the use of prescription evaluation tools and support system for decision-m...
Article
Full-text available
(1) Purpose: To investigate a complex MULTIPAP intervention that implements the Ariadne principles in a primary care population of young-elderly patients with multimorbidity and polypharmacy and to evaluate its effectiveness for improving the appropriateness of prescriptions. (2) Methods: A pragmatic cluster-randomized clinical trial was conducted...
Article
Full-text available
Background Robust public health and health system response to the increasing burden of multimorbidity worldwide requires detailed epidemiological examination of its key sociodemographic and geographic determinants. We investigated the role of gender, age and socioeconomic and geographic factors on multimorbidity (i.e., having two or more conditions...
Article
Aim: The primary aim was to examine the feasibility of intervention delivery and of trial procedures. Secondary aims were to study the intervention uptake; its acceptability and perceived utility; and its potential to improve safety culture and avoidable hospital admissions. Methods: We conducted a 3-month, single-arm feasibility study in 10 pri...
Article
Full-text available
Background Hypertension is a highly prevalent condition, with optimal treatment to BP targets conferring significant gains in terms of cardiovascular outcomes. Understanding why some patients do not achieve BP targets would be enhanced through greater understanding of their health-related quality of life (HRQoL). However, the only English language...
Preprint
Full-text available
Background: The progressive ageing of the population is leading to an increase in multimorbidity and polypharmacy, which in turn may increase the risk of hospitalization and mortality. The enhancement of care with information and communications technology (ICT) can facilitate the use of prescription evaluation tools and support system for decision-...
Article
Full-text available
Background Higher continuity of GP care (CGPC), that is, consulting the same doctor consistently, can improve doctor–patient relationships and increase quality of care; however, its effects on patients with dementia are mostly unknown. Aim To estimate the associations between CGPC and potentially inappropriate prescribing (PIP), and with the incid...
Article
Full-text available
Background: One-year risk of stroke in transient ischemic attack and minor stroke (TIAMS) managed in secondary care settings has been reported as 5–8%. However, evidence for the outcomes of TIAMS in community care settings is limited. Methods: The INternational comparison of Systems of care and patient outcomes In minor Stroke and TIA (INSIST) stud...
Article
Full-text available
Background The Patient Reported Outcome Measurement Information System profile instruments include “high information” items drawn from large item banks following the application of modern psychometric criteria. The shortest adult profile, PROMIS-29, looks set to replace existing short-form instruments in research and clinical practice. The objectiv...
Article
Full-text available
Background Although circadian, seasonal, and other cycles have been observed for a number of chronic conditions, their impact on patient reported outcomes measurements (PROMs) has not been systematically explored, rendering our understanding of the effect of time of measurement on PROM scores very limited. The aim was to conduct a scoping review to...
Article
Full-text available
Background Platelet-rich plasma (PRP) is widely used in the management of lateral elbow tendinopathy (LET) despite conflicting evidence on its effectiveness. With high levels of user experience, this study aimed to assess consensus amongst experts on its clinical use. Methods A three-round international Delphi study was conducted. Participants wer...
Article
Full-text available
Resumen Objetivo Evaluar el impacto de los cambios introducidos en respuesta a la pandemia sobre la seguridad del paciente (SP) percibida por los pacientes en Atención Primaria. Diseño Estudio observacional prospectivo de panel (centro de salud [CS]) basado en dos encuestas transversales. Emplazamiento 29 CS de tres regiones sanitarias de España...
Article
Full-text available
Background The definition of population-specific outcomes is an essential precondition for the implementation of value-based health care. We developed a minimum standard outcome set for overall adult health (OAH) to facilitate the implementation of value-based health care in tracking, comparing, and improving overall health care outcomes of adults...
Article
Background Although routine NHS data potentially include all patients, confounding limits their use for causal inference. Methods to minimise confounding in observational studies of implantable devices are required to enable the evaluation of patients with severe systemic morbidity who are excluded from many randomised controlled trials. Objective...
Article
Full-text available
Background Drug-related problems and potentially inappropriate prescribing impose a huge burden on patients and the health-care system. The most widely used tools for appropriate prescription in older adults in England and in other European countries are the Screening Tool of Older People’s Prescriptions (STOPP)/Screening Tool to Alert to the Right...
Preprint
Full-text available
Background Healthcare outcome goals are central to person-centred acute care, however evidence among older people is scarce. Older people who are living with frailty have distinct requirements for healthcare delivery and have distinct risk for adverse outcomes from healthcare. There is insufficient evidence for whether those living with frailty als...
Article
Full-text available
Background: Patient-reported outcomes measures (PROMs) assess a patient's subjective appraisal of health outcomes from their own perspective. Despite hypothesised benefits that feedback on PROMs can support decision-making in clinical practice and improve outcomes, there is uncertainty surrounding the effectiveness of PROMs feedback. Objectives:...
Article
Introduction Limited data are available on the influence of multimorbidity on the outcomes of total hip replacement for patients with hip osteoarthritis. Thus, patients with multimorbidity and their clinicians across the UK are making decisions on whether or not to proceed with total hip replacement without clear information available on the potent...
Article
Introduction Limited data are available on the influence of multimorbidity on the outcomes of total hip replacement for patients with hip osteoarthritis, including the rate of complications and degree of functional benefit. The aim of this study was to investigate the influence of multimorbidity on the outcomes of total hip replacement in the UK....
Article
Full-text available
Policy Points The 2018 Declaration of Astana reemphasized the importance of primary health care and its role in achieving universal health coverage. While there is a large amount of literature on the economic aspects of delivering primary care services, there is a need for more comprehensive overviews of this evidence. In this article, we offer suc...
Preprint
Full-text available
Background: Hypertension is a highly prevalent condition, with optimal treatment to BP targets conferring significant gains in terms of cardiovascular outcomes. Understanding why some patients do not achieve BP targets would be enhanced through greater understanding of their health-related quality of life (HRQoL). However, the only English language...
Article
Objectives: The Patient Reported Experiences and Outcomes of Safety in Primary Care (PREOS-PC) is a valid and reliable instrument (61 items across 5 domains) of patients' perceptions of safety. Stakeholder feedback has supported shorter versions for improving choice and facilitating uptake of routine patient-centered evaluation. We sought to devel...
Article
Suicide is a major public health problem worldwide and continues to be one of the main causes of death. Implementing surveillance strategies for suicidal thoughts and behaviours would make it possible to identify individuals at high risk of ending their lives by suicide. While a universal screening would be controversial, the increasing use of the...
Preprint
BACKGROUND Developing new strategies to support the provision of safer primary care (PC) is a major priority both internationally and in Spain, where around 3 million adverse events occur each year in the PC setting. OBJECTIVE The primary aims of this mixed-methods feasibility study were to examine the feasibility and to explore the acceptability...
Article
Background: We aimed to estimate the prevalence of current depressive disorder in 27 European countries, and to explore differences in prevalence between European countries and by gender. Methods: In this population-based study, we analysed data from respondents living in 27 European countries who were included in the second wave of the European...
Article
Full-text available
Background The use of Patient Reported Outcome Measures (PROMS) in clinical practice has the potential to promote patient-centred care and improve patients’ quality of life. Individualized PROMs may be particularly helpful in identifying, prioritizing and monitoring health problems of patients with multimorbidity. We aimed to develop an interventio...
Article
Full-text available
We aimed to examine the complex relationships between patient safety processes and outcomes and multimorbidity using a comprehensive set of constructs: multimorbidity, polypharmacy, discordant comorbidity (diseases not sharing either pathogenesis nor management), morbidity burden and patient complexity. We used cross-sectional data from 4782 patien...
Article
Objective: This study aimed to cross-culturally adapt, validate, and pilot the Patient Reported Experiences and Outcomes of Safety in Primary Care questionnaire for its use in Spain. Methods: After setting up an expert panel to determine its content validity, the questionnaire was translated and back-translated, and subjected to cognitive testin...
Article
Methods A representative sample of the UK population (n=17,152) from the European Health Interview Survey of 2014 was included in the analyses. The Patient Health Questionnaire (PHQ-8) was used to assess the prevalence of depressive symptoms and of probable depressive disorder. Prevalence estimates (95%CI) were calculated. The association between p...
Article
Mental health-related multimorbidity can be considered as multimorbidity in the presence of a mental disorder. Some knowledge gaps on the study of mental health-related multimorbidity were identified. These knowledge gaps could be potentially addressed with real-world data.
Article
Full-text available
Background Up to 50% of medicines are not used as intended, resulting in poor health and economic outcomes. Medicines optimisation is ‘a person-centred approach to safe and effective medicines use, to ensure people obtain the best possible outcomes from their medicines’. The purpose of this exercise was to co-produce a prioritised research agenda f...
Article
Full-text available
Background EQ-5D health state utilities (HSU) are commonly used in health economics to compute quality-adjusted life years (QALYs). The EQ-5D, which is country-specific, can be derived directly or by mapping from self-reported health-related quality of life (HRQoL) scales such as the PROMIS-29 profile. The PROMIS-29 from the Patient Reported Outcom...
Article
Full-text available
Introduction: Though self-reported items (SRD, self-reported depression) are commonly used in health surveys and cohort studies, their metric properties as a depression indicator remain unclear. The aims were to evaluate the measurement properties of SRD using the Patient Health Questionnaire-8 (PHQ-8) as reference and to identify factors related...
Article
Full-text available
This study aimed to analyse the trajectories and mortality of multimorbidity patterns in patients aged 65 to 99 years in Catalonia (Spain). Five year (2012–2016) data of 916,619 participants from a primary care, population-based electronic health record database (Information System for Research in Primary Care, SIDIAP) were included in this retrosp...
Article
Full-text available
The relationship of problematic cannabis consumption with perceived risk, socioenvironmental and sociodemographic factors among youth in Spain is not well known. The aims of this study are: 1) to describe the patterns of cannabis consumption (problematic and non-problematic) in Spanish youth, and 2) to explore whether problematic cannabis consumpti...
Article
Full-text available
Background: The impact of comorbidity on the risk of revision in patients undergoing Total Knee arthroplasty (TKA) and Total Hip Arthroplasty (THA) is not currently well known. The aim of this study was to analyze the impact of comorbidity on the risk of revision in TKA and THA. Methods: Patients recorded in the Catalan Arthroplasty Register (RA...